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EP0313188B1 - Interconnexion des éléments de guidage longitudinal des faux châssis d'entraxes pour un bogie ferroviaire - Google Patents

Interconnexion des éléments de guidage longitudinal des faux châssis d'entraxes pour un bogie ferroviaire Download PDF

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Publication number
EP0313188B1
EP0313188B1 EP88306882A EP88306882A EP0313188B1 EP 0313188 B1 EP0313188 B1 EP 0313188B1 EP 88306882 A EP88306882 A EP 88306882A EP 88306882 A EP88306882 A EP 88306882A EP 0313188 B1 EP0313188 B1 EP 0313188B1
Authority
EP
European Patent Office
Prior art keywords
steering
truck
car body
wheelsets
pivotal connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88306882A
Other languages
German (de)
English (en)
Other versions
EP0313188A2 (fr
EP0313188A3 (en
Inventor
Roy E. Smith
Peter E. Timan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UTDC Inc
Original Assignee
UTDC Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UTDC Inc filed Critical UTDC Inc
Priority to AT88306882T priority Critical patent/ATE83445T1/de
Publication of EP0313188A2 publication Critical patent/EP0313188A2/fr
Publication of EP0313188A3 publication Critical patent/EP0313188A3/en
Application granted granted Critical
Publication of EP0313188B1 publication Critical patent/EP0313188B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/44—Adjustment controlled by movements of vehicle body

Definitions

  • This invention relates to railway vehicles having trucks which are equipped with wheelsets which are pivotally mounted to the truck.
  • the wheelsets are guided to a radial alignment during travel of the railway vehicle along circular curved track.
  • each wheelset is mounted in a steering yoke.
  • the yokes are interconnected.
  • these mechanisms make use of the yaw motion of the car body relative to the truck centre line to create the steering motions.
  • forces are created in a lateral direction on the outboard yoke and reacted through a reference link and lateral link to the truck side frame.
  • the stiffness which can be designed into these type of components making up the mechanical linkage, is usually such that steering accuracy is inadequate and stability against hunting oscillations is unsatisfactory.
  • An example of such a structure is disclosed in EP-A-0165752.
  • the steering mechanism of this invention may be mounted on an existing truck having axles mounted in interconnected yokes.
  • the mechanism is offset laterally from the centre line of the truck. It is advantageous to offset the mechanism as far as practical.
  • a steering mechanism for use on a railway vehicle having a car body mounted on at least two trucks, at least one of said trucks having inboard and outboard wheelsets, each said wheelset having a yoke attached thereto, the two said yokes having a pivotal interconnection, characterized by said wheelsets supporting said truck and adapted for relative pivotal movement with respect to said truck about a generally vertical axis and by a steering mechanism for guiding said wheelsets to a radial alignment when said vehicle is travelling on circular curved track, comprising a steering link connected to said car body remote from the longitudinal centre line of said car body, a steering lever pivotally connected to said steering link, and linkage mechanism interconnecting said steering lever and said inboard and outboard yokes whereby longitudinal movement of the connection between said steering link and said car body with respect to said truck when said truck rotates with respect to said body causes relative longitudinal movement of said linkage mechanism which guides said wheelsets to a radial aligment and maintain
  • the linkage mechanism inter-connects the steering lever and the inboard and outboard yokes whereby relative longitudinal movement of the car body/steering link connection point with respect to the truck when moving from tangent track to circular track causes relative and opposite pivotal movement of the inboard and outboard yokes whereby the wheelsets assume a radial configuration when on curved track.
  • the mechanism may be mounted on typical wheelset yokes and is offset laterally from the centre line of the truck as far as practical.
  • a bracket may be attached to the outboard yoke which bracket carries the lower pivot for a vertical steering lever which is thereby connected to it.
  • a steering rod is connected to the bracket by means of a pivotal connection and this steering rod is similarly attached to the inboard yoke through a bracket carrying a pivot connection.
  • the top of the steering lever is connected to a longitudinal steering link through a pivot connection and the other end of that link is connected to the car body.
  • the steering link As the car body swivels relative to the truck the steering link is moved fore and aft relative to points on the truck, thus pivoting the steering lever and forcing the yokes apart or together. Because the yokes are pinned together at the centre of the truck, the action of the steering mechanism is to cause the wheelset/yoke assemblies to rotate relative to one another into a steered alignment. Correct proportioning of the lever ratio ensures that true radial alignment is achieved on circular curves.
  • FIG. 1 is a sectional view on line I-I of Figure 2 and illustrates a truck generally at 10 having a steering mechanism according to this invention installed thereon.
  • the truck comprises an outboard wheelset 12 and an inboard wheelset 14.
  • Each wheelset as will be understood by those familiar with railroad art, comprises an axle and a pair of flanged conical wheels fixed thereto such that the axle and wheels turn at the same radial speed.
  • Such conical wheelsets if permitted appropriate freedom will move to a radial configuration when travelling on curved tracks.
  • such single wheelsets are unstable and will continue to hunt when travelling on either tangent track or on curved track.
  • the wheelsets are mounted in yokes.
  • the outboard yoke is indicated at 16 and the inboard yoke at 18.
  • the truck frame is indicated generally at 20.
  • a bracket 30 is attached to outboard yoke 16.
  • the bracket 30 comprises a pivotal connection 32 at a convenient portion of the bracket.
  • a substantially vertical steering lever 34 is pivotally connected to bracket 30 at pivotal connection 32.
  • the steering lever 34 has a pivotal connection 36 at its upper end.
  • a steering link 40 is pivotally connected to steering lever 34 at the pivotal connection 36.
  • the steering link 40 is connection 36.
  • the steering link 40 is attached to the car body, which is not illustrated, at connection 42.
  • the bracket 30, steering lever 34 and steering link 40 are all located laterally as remote as possible from the centre line of the vehicle.
  • the location of the steering mechanism is dictated by the configuration of the truck frame, the yokes and the configuration of bracket 30.
  • the advantage of having the mechanism remote as far as possible from the centre line is that larger motions are available for more accurate steering inputs.
  • the steering lever 34 has a pivotal connection 44 which is intermediate the pivotal connections 32 and 36.
  • a steering rod 46 is pivotally connected to the steering lever 34 at pivotal connection 44.
  • the steering rod 46 is pivotally connected to a bracket 48 at pivotal connection 50.
  • Bracket 48 is affixed to the inboard steering yoke 18.
  • the outboard steering yoke 16 and the inboard steering yoke 18 are pivotally connected to each other at 17 for relative pivotal movement.
  • connection 42 will move longitudinally as the truck pivots with respect to the car body.
  • the steering lever 34 will be caused to pivot about the pivotal connection 32.
  • the steering rod 46 to be drawn to the left with respect to the pivotal connection 32.
  • the two wheels illustrated of wheelsets 12 and 14 respectively will be moved towards each other and thus accomplish a turn with the centre of curvature in front of the sheet.
  • movement in the other direction will cause the wheels illustrated in the drawing to move further apart accomplishing a turn in the direction with the radius of curvature behind the sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)
  • Motor Power Transmission Devices (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Handcart (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (6)

  1. Mécanisme de guidage à utiliser sur un véhicule ferroviaire comportant une caisse montée sur au moins deux bogies, au moins un des bogies comportant un essieu intérieur et un essieu extérieur, chaque essieu étant pourvu d'un étrier qui y est attaché, les deux étriers étant reliés par une articulation, caractérisé en ce que les essieux (12, 14) supportent le bogie et sont à même de pivoter chacun par rapport au bogie autour d'un axe généralement vertical et en ce qu'un mécanisme de guidage est prévu pour guider les essieux vers un alignement radial lorsque le véhicule parcourt une voie courbe circulaire, comprenant une biellette de guidage (40) reliée à la caisse à distance de l'axe longitudinal central de celle-ci, un levier de guidage (34) articulé à la biellette de guidage (40), et un mécanisme de liaison (30, 46, 48) reliant le levier de guidage (34) et les étriers intérieur (18) et extérieur (16), de sorte qu'un déplacement longitudinal de la liaison (42) entre la biellette de guidage (40) et la caisse par rapport au bogie, lorsque le bogie pivote par rapport à cette caisse, entraîne un déplacement longitudinal relatif du mécanisme de liaison (30, 46, 48) qui guide les essieux (16, 18) vers un alignement radial.
  2. Mécanisme de guidage suivant la revendication 1, caractérisé en ce qu'il comprend :
       un levier de guidage (34) articulé à la biellette de guidage (40), une articulation entre le levier de guidage et l'essieu extérieur, le levier de guidage (34) présentant une autre articulation (44) située entre l'articulation reliant le levier de guidage et la biellette de guidage et l'articulation reliant le levier de guidage et l'étrier extérieur,
       une bielle de guidage (46) articulée au levier de guidage (34), à ladite autre articulation, la bielle de guidage étant articulée à l'étrier intérieur.
  3. Mécanisme de guidage suivant la revendication 2, caractérisé en ce que le levier de guidage (34) est relié à l'essieu extérieur (12) au moyen d'une chape (30) fixée à l'étrier (16), la chape étant articulée au levier de guidage (34).
  4. Mécanisme de guidage suivant la revendication 3, caractérisé en ce que la bielle de guidage (46) est reliée à l'étrier intérieur (18) au moyen d'une chape (48) fixée à l'étrier, la chape étant articulée en (50) à la bielle de guidage (46).
  5. Mécanisme de guidage suivant la revendication 1, comportant des mécanismes redondants de part et d'autre d'une articulation entre le bogie et la caisse.
  6. Véhicule ferroviaire, caractérisé par un mécanisme de guidage suivant l'une quelconque des revendications précédentes.
EP88306882A 1987-07-28 1988-07-26 Interconnexion des éléments de guidage longitudinal des faux châssis d'entraxes pour un bogie ferroviaire Expired - Lifetime EP0313188B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88306882T ATE83445T1 (de) 1987-07-28 1988-07-26 Lenkerverbindung fuer die laengssteuerung der achseninnenjoche von eisenbahndrehgestellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7874287A 1987-07-28 1987-07-28
US78742 1987-07-28

Publications (3)

Publication Number Publication Date
EP0313188A2 EP0313188A2 (fr) 1989-04-26
EP0313188A3 EP0313188A3 (en) 1989-11-29
EP0313188B1 true EP0313188B1 (fr) 1992-12-16

Family

ID=22145953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306882A Expired - Lifetime EP0313188B1 (fr) 1987-07-28 1988-07-26 Interconnexion des éléments de guidage longitudinal des faux châssis d'entraxes pour un bogie ferroviaire

Country Status (8)

Country Link
EP (1) EP0313188B1 (fr)
JP (1) JPH01106769A (fr)
KR (1) KR890001814A (fr)
AT (1) ATE83445T1 (fr)
AU (1) AU609502B2 (fr)
DE (1) DE3876751T2 (fr)
HU (1) HU201707B (fr)
PL (1) PL273961A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0930210B1 (fr) * 1998-01-14 2004-04-28 Bombardier Transportation GmbH Train de roulement pour véhicules ferroviaires et véhicule ferroviaire avec au moins un tel train de roulement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655143A (en) * 1974-01-31 1987-04-07 Railway Engineering Associates, Inc. Articulated trucks
CH542743A (de) * 1971-09-24 1973-10-15 Schweizerische Lokomotiv Vorrichtung zum Übertragen von Zug- und Bremskräften an einem Schienenfahrzeug
CH609292A5 (fr) * 1976-05-07 1979-02-28 Schweizerische Lokomotiv
EP0072328B1 (fr) * 1981-08-07 1985-05-08 SOCIETE M T E Société anonyme Bogie à essieux orientables

Also Published As

Publication number Publication date
HUT49310A (en) 1989-09-28
DE3876751D1 (de) 1993-01-28
PL273961A1 (en) 1989-04-17
DE3876751T2 (de) 1993-07-08
EP0313188A2 (fr) 1989-04-26
KR890001814A (ko) 1989-04-06
EP0313188A3 (en) 1989-11-29
AU609502B2 (en) 1991-05-02
ATE83445T1 (de) 1993-01-15
HU201707B (en) 1990-12-28
AU2003488A (en) 1989-02-02
JPH01106769A (ja) 1989-04-24

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